Accumulated Other Comprehensive Income-Components of Accumulated Other Comprehensive Income, Net of Tax (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2015	Aug. 31, 2014	Nov. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax		$ 2.1	$ (0.3)	$ 5.3	$ (0.9)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax		(0.6)	0.1	(1.2)	0.3
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax		1.5	(0.2)	4.1	(0.6)
Other Comprehensive (Income) Loss, Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service Cost (Credit), before Tax	[1]	0.0	0.1	0.2	0.3
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), before Tax	[1]	5.7	4.2	17.1	12.4
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax		5.7	4.3	17.3	12.7
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net (Gain) Loss, Tax		(1.9)	(1.4)	(5.9)	(4.3)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net (Gain) Loss, Net of Tax		3.8	2.9	11.4	8.4
Foreign currency translation adjustment		(152.3)	126.8	(152.3)	126.8	$ 32.1
Unrealized gain (loss) on foreign currency exchange contracts		2.1	0.3	2.1	0.3	3.0
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net		0.5	0.0	0.5	0.0
Unamoritzed value of settled interest rate swaps		2.8	2.4	2.8	2.4	2.9
Pension and other postretirement costs		(206.7)	(159.1)	(206.7)	(159.1)	(224.0)
Accumulated other comprehensive income		(353.6)	(29.6)	(353.6)	(29.6)	$ (186.0)
Cash Flow Hedging [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		2.1	(0.3)	5.3	(0.9)
Foreign Exchange Contract [Member] | Cash Flow Hedging [Member] | Cost of Sales [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		2.1	(0.3)	5.4	(0.8)
Interest Rate Contract [Member] | Cash Flow Hedging [Member] | Interest Expense [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		$ 0.0	$ 0.0	$ (0.1)	$ (0.1)

[1] This accumulated other comprehensive income component is included in the computation of total pension expense (refer to note 7 for additional details).